Through OST file Converter software thereby its app you can faultlessly and basically convert OST emails to PST files for Outlook 2019, 2016, 2013, 2010, etc. It is the right solution for conversion data from MS Outlook OST to PST file. By using free unlimited ost to pst converter online tool for splitting large PST files before export files from OST to PST Outlook. This tool to convert single/multiple Outlook OST files to file multiple formats like PST, office 365, OLM, Gmail, Live Exchange Server, Zimbra,  PST, EML, MSG, vCal, vCard, EMLX, MBOX and etc.